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S3 Power Supply Repair

Discussion in 'TiVo Help Center' started by uw69, Jun 30, 2012.

  1. uw69

    uw69 Member

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    Jan 25, 2001
    Washington
    Have an original S3 power supply in need of repair, several domed capacitors. Weaknees isn't interested in just a straight repair. Anyone know of someone or a company that will repair a Tivo power supply? Thanks
     
  2. unitron

    unitron Active Member

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    It's only about $10 worth of parts. Can you figure out which end of a soldering iron to hold?

    Can you tell red from yellow from black?
     
  3. Jul 1, 2012 #3 of 26
    uw69

    uw69 Member

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    Washington
    No need to be all bunched up, if you can't help, please ignore this post a move on. thanks
     
  4. Jul 1, 2012 #4 of 26
    unitron

    unitron Active Member

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    The point I am making is that you can probably do it yourself.

    You've already shown the initiative to learn about the capacitor problem and open up the case and eyeball the thing.

    You're halfway there already.
     
  5. Jul 1, 2012 #5 of 26
    caddyroger

    caddyroger New Member

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    Some where...
    You could try a tv repair shop or some other electronic repair service. They may be able to solder the parts for you.
     
  6. Jul 1, 2012 #6 of 26
    shwru980r

    shwru980r Active Member

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    I would just buy another S3 and swap out the power supply.
     
  7. Jul 1, 2012 #7 of 26
    uw69

    uw69 Member

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    Jan 25, 2001
    Washington
    I did that, and now I'm trying to repair the one I took out. Ordered the parts, so I guess I will give it a shot.
     
  8. Jul 1, 2012 #8 of 26
    farmermac

    farmermac Recorder of shows

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    Jan 31, 2012
    I wonder if dvrdude on eBay might do power supplies too
     
  9. Jul 1, 2012 #9 of 26
    unitron

    unitron Active Member

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    That's 2 different skill sets, so, while possible, by no means automatic.

    I'd start doing it myself except that offering any kind of guarantee would be financial suicide, not to mention the uncertainty of obtaining parts if the problem was something other than the capacitor thing.

    And I'd need a spare TiVo of whatever model number in order to test the supply to make sure I'd fixed it.
     
  10. SullyND

    SullyND L:45-21 TCF Club

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    Didn't someone post recently that someone on "that other site" was offering a "deal" repairing S3 power supplies?
     
  11. uw69

    uw69 Member

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    Jan 25, 2001
    Washington
    I'm surprised that no one has started a side business repairing power supplies. Especially for the series 3. I can see how having a unit to test the power supply in would be required.
     
  12. unitron

    unitron Active Member

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    The guy who's been doing PROM modifications started doing power supply fixing as well, but apparently has been uncommunicative lately.
     
  13. dlfl

    dlfl Cranky old novice

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    If you account for all the labor and expense involved, including packing, shipping, insurance, testing, and dealing with customers, you would have a hard time getting under the $100 cost of a new supply, especially if the only way you can test it is installing it into a TiVo of the same model . (I suspect test harnesses with resistor loads would be much preferable.)
     
  14. dlfl

    dlfl Cranky old novice

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    He updated his thread 6/29/12 reaffirming he is still doing this. Interesting he does this for only $50 including return shipping. (You pay shipping to him, which adds $8 to $10 to your cost.) Also it isn't clear whether he replaces all elecrolytics or just the ones that look bad, or what his test procedure is.

    If he's going to make a reasonable profit in reward for his labor, I don't see how he could be replacing all caps and doing much testing. (Unless he likes to work for minimum wage.) He has to pay the shipping cost back plus the cost of parts, leaving only around $30 to cover his time.

    Anyway I'm glad he's doing it. I need to open my 3 yr old THD and take a look at the caps. I will probably do my own soldering but I think (again not perfectly clear) he sells cap kits.

    EDIT:
    Hmmm... Rereading his thread it says he replaces the caps that look bad. Weaknees.com sells brand new TiVo HD supplies for $100 including shipping. Comparing spending $60 for replacing a few parts to that, I think I would consider the new supply a better choice.
     
  15. steve614

    steve614 what ru lookin at?

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    "Brand new" as in "never been installed in a Tivo"? I'll have my doubts until someone proves they got surplus stock of power supplies after the Tivos stopped being manufactured.
    I suspect they are all refurbished.
    But that's not necessarily a bad word. Weaknees has a good reputation AFAIK. I assume they have the testing equipment to ensure what they sell will actually work.
    I know better, but I think the average Joe would probably trust Weaknees over some dude on e-bay, much less some guy on an internet forum...:p
     
  16. unitron

    unitron Active Member

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  17. dlfl

    dlfl Cranky old novice

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    weaknee's descriptions of their power supplies are different for each TiVo model ranging from "brand new" to "working pull". The S3 unit described in the post linked by unitron is called a "replacement", not "brand new". I haven't dealt with weaknees myself but if they are indeed deserving of a good reputation, they would not be labeling refurbished supplies as "brand new".

    Any power supply, new, refurbished or just repaired, could suffer a failure at any time, either within 90 days or later. A single experience doesn't carry a lot of weight.
     
  18. unitron

    unitron Active Member

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    I suppose replacement could mean either refurbished or working pull, so she could have sent them a power supply with the bogus caps that had already gotten bad enough to be visible and gotten back a unit that had bogus caps that hadn't gone bad yet, now that you make me think harder about exact word meanings.
     
  19. windracer

    windracer joined the 10k club

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    St. Pete, FL
    I came home from a holiday weekend trip out of town and found my OLED S3 in a reboot loop. Tried removing the CableCARDs and it booted just fine ... slid the cards back in and it rebooted.

    Opened the case and found 6 bulging capacitors on the power supply. :( I am not that handy with a soldering iron so I'm going the weaknees route to see if that gets my S3 working again (Sep-06 manufacture date).

    I don't understand why the S3 power supplies are so expensive compared to the others on their site ... plus, you have to send yours back to get the $50 "rebate" bringing the price back down to $99. I guess it's because so many PSUs are going bad they want to stock up on repairable units as discussed above.
     
  20. unitron

    unitron Active Member

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    There's a guy who fixes them for much cheaper, you know.
     

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